Explosion Vent Locations - York M36 Manual

Explosion Vent Locations

State and local codes may require explosion
vents for this bucket elevator. NFPA (National
Fire Protection Association) Standard 61
(1999) has established recommended
practices for the placement of these vents.
NFPA61, section 5 - 4.1.2 states in part the
following: "All newly installed outside legs
handling bulk raw grain shall be provided with
explosion relief panels, located at intervals
no greater than 20' [6 m] along the casings.
To minimize personnel exposure, explosion
venting for outside legs shall start between
8' [2,438 mm] and 12' [3,657 mm] above
a) Leg Extending Through a Building
EXPLOSION VENT
GLOBAL
2015-08-31
Specifications
in head
20' [6,096 mm]
maximum
minimum 2' [610 mm]
INDUSTRIES, INC.
grade, or the bottom of the explosion vent
shall be within 1' [305 mm] to 4' [1,219 mm]
after the leg penetrates the building roof." It is
your responsibility to know what the specific
requirements are for your installation.
The examples on
the requirements of NFPA61 5 - 4.1.2.
NOTE: See pages 10 - 11
to grain dust explosions.
25
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M36 - M48 Bucket Elevator
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